| A G Baggett & P J Weber DBA Canyon Construction | Arthur Guy Jr Baggett | — | (916) 747 1544 | Electricians | El Portal · Mariposa County | — | — |
| All Water Plumbing | All Water Plumbing | — | (530) 470 3489 | Electricians | Mariposa · Mariposa County | — | — |
| Aran Mounce Electric | Aran Wayne Mounce | — | (310) 490 0790 | Electricians | Mariposa · Mariposa County | — | — |
| Brentwood Electric | Brent Andrew Coffman | — | (209) 966 4985 | Electricians | Mariposa · Mariposa County | — | — |
| Earl Gann Electric | Earl Lenden Gann | — | (209) 628 1875 | Electricians | Midpines · Mariposa County | — | — |
| G E M Electric | George Edward Jr Miller | — | (209) 678 5028 | Electricians | Coulterville · Mariposa County | — | — |
| Hartsog Electric | Casey Ryan Hartsog | — | (209) 742 2144 | Electricians | Mariposa · Mariposa County | — | — |
| Hg Hydro INC DBA Tri County Pump And Well | Aaron Anthony Hatcher | — | (209) 742 7867 | Electricians | Mariposa · Mariposa County | — | — |
| Huff Electric | Stephen Lamar Huff | — | (408) 204 1374 | Electricians | Coulterville · Mariposa County | — | — |
| Ken's Handy Service | Ken's Handy Service | — | (530) 884-4425 | Electricians | Mariposa · Mariposa County | — | — |
| Kramer's Electric | Donald A Kramer | — | (209) 761 2055 | Electricians | Catheys Valley · Mariposa County | — | — |
| Leucadia Electric Inc. | Leucadia Electric Inc. | — | (760) 229-2603 | Electricians | Carlsbad · Mariposa County | — | — |
| M D Day Electric | Michael Dean Day | — | (209) 402 3051 | Electricians | Coulterville · Mariposa County | — | — |
| Natural Environments INC | John David Wise | naturalenvironmentsinc@gmail.com | (209) 742 7004 | Electricians | Mariposa · Mariposa County | — | — |
| Philips Electric | Justin Arlie Philips | — | (209) 628 3330 | Electricians | Mariposa · Mariposa County | — | — |
| Positive Electrical | Positive Electrical | — | (949) 361-1664 | Electricians | San Clemente · Mariposa County | — | — |
| R Hambleton Electric | Robert Andrew Hambleton | — | (209) 617 4909 | Electricians | Mariposa · Mariposa County | — | — |
| Reda Electric | Reda Electric | — | (415) 654-4396 | Electricians | Mariposa · Mariposa County | — | — |
| S & S Electric | Lance Justin Stewart | bgehr@sselectric.com | (209) 966 5252 | Electricians | Mariposa · Mariposa County | — | — |
| Service Electric | Che' Sundance Robbins | — | (209) 769 4563 | Electricians | Mariposa · Mariposa County | — | — |
| Summit Electric | Jason Isaac Swartz | sales@summit-electric.com | (209) 966 2039 | Electricians | Mariposa · Mariposa County | — | — |
| Thinkbuilt | Jonathan Patrick Lampman | — | (310) 968 2520 | Electricians | Mariposa · Mariposa County | — | — |
| W Bray Electric | William Arron Bray | — | (559) 676 8336 | Electricians | Mariposa · Mariposa County | — | — |